There are a few things you can verify before calling an electrician. Is the dimmer compatible with the lights or do you have different lights connected together on the switch?
All our lights have been tested with different dimmers to assure the compatibility. These compatible dimmer lists can be found on our website by clicking the desired product, scroll under the picture of the item and click on the compatible dimmer list PDF document. If the dimmer is compatible and the lights are still blinking you can always contact us and a technician will gladly assist you